This is the daily classroom agenda for Paxton Center School Grade 7 Science. Lesson plans, homework, and other relevant information will be posted here each class.
Forces: a push or a pull
Two main kinds:
non-contact forces - force is exerted across a distance without any contact
magnetism - force between two bodies made of certain metals.
gravity - force of attraction between two bodies that have mass
(static) electric forces - forces created by electric charges
Contact forces - force of one body in contact with another.
applied - force of one body pushing or pulling on another
elastic - force of elastic (spring) materials being stretched or compressed (squished)
Normal - force of a surface pushing back against an applied force exerted on it.
Friction - a contact force that opposes motion
contact - force between bodies sliding across one another
wind resistance - force of air molecules hitting a moving body
water resistance - force of water molecules hitting a moving body
Review Study Guide:
What are forces - p501
Contact vs. non-contact forces (502)
define each (502)
3 examples each (502)
describe each example
Define friction (503) and describe it.
identify/describe 3 different types of friction (found in your notes)
Quiz Thursday
Read and review: - Section D Gravity of the LO
Late work not accepted.
What are forces - p501
Contact vs. non-contact forces (502)
define each (502)
3 examples each (502)
describe each example
Define friction (503) and describe it.
identify/describe 3 different types of friction (found in your notes)
Read and complete section D gravity of the LO for tomorrow.
Time to work.
Use vectors to show motion (to a stationary observer) of a dog swimming south in a river that also flows south. The dog swims at 2.1 m/s and the river flows at 1.7 m/s.
Use vectors to show the combined motion (to a stationary observer) of a boat motoring East at 7.9 m/s in an ocean tidal current that flows North at 2.2 m/s.
Forces -
push or pull
contact versus non-contact
mechanical
gravity
electric
magnetism
Friction
opposes motion or other forces
air resistance
water resistance
contact rubbing
weight, shape and surface roughness affect strength of contact friction
What are the round particle shown on the sim?
What are they “doing” before you begin rubbing the books together (describe their motion)?
How does rubbing the books together affect the particle (describe)?
How does rubbing the books together affect the temperature of the books (describe)?
Set up a fresh page on your notebook.
Add a formal heading
Number each question and respond in TTQA format.
Skip lines between questions.
Write legibly.
Set up a fresh page on your notebook.
Add a formal heading
Number each question and respond in TTQA format.
Skip lines between questions.
Write legibly.
Vector Practice II
Use a colored pencil or highlighter to color code the fastest and the slowest laps.
Add a key to your graph.
Fastest/Slowest Laps Speed Calculations
use a distance of 50m
use lap time - not total time
Average Speed Calculation
lap distance is 250m
use total time
Class Notes: Velocity
Define Velocity
How is Velocity represented
in words
graphically
Constant Velocity
Changing Velocity
speed change
direction change
either is acceleration
Drawing velocity - Vector Notes
a title in a single merged cell above the data
column labels that are properly capitalized with units
all data, titles, and labels centered
borders
be sized to how large you want it
(check the print preview and adjust the font size as needed up or down)
Line graph
Neat and on graph paper
descriptive title
correct axis labels with units
time is X-axis
distance is Y-axis
axis scales with even intervals that fit the data
correctly plotted data with data points and a plot line
an average speed line drawn in a different color that the plot line.
Neat with appropriate use of color and decoration.
Review of assignment/rubric.
Oak Tag Sizes
Printing Requests
Plan first - one print only.
Make sure sizes are what you want.
Paste all work you want printed into a single doc.
your name must be on each document page
Share and Ask teacher for print help during HR
No color printing allowed
time to work
